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Parker’s extruded D-rings are radial seals with flat inner diameters and machined outer diameters. The flat bases help prevent spiral failure which can be experienced in radial seal applications where twisting during installation can occur.
D-ring seals (or D-rings) are another style of homogeneous radial seals consisting of a flat base and a rounded sealing surface, creating a cross sectional geometry similar to a capital “D”.
These seals are used in very similar applications to the double chamfer seals, and are mostly in static and reciprocating applications. D-ring seals also provide excellent stability in the groove and can help prevent spiral failure in radial seal grooves.
The rounded surface of the D-ring requires similar installation force to the double chamfer designs, and also works well by providing a gradual compression profile. We also recommend using the installation chamfer with D-rings to ease the installation force and protect the seal.
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O-Ring & Engineered Seals Division
2360 Palumbo Drive
Lexington,
KY
United States
40509
Phone
859 269 2351
Fax
859 335 5128
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